Metamorphosis (1990, G. L. Eastman)
Yup, the 'phagus himself, who also wrote the thing.
A scientist is given a deadline, going the direct route with the old expermintation ... with the usual results plotwise. Maddening film. It's as crazed as they come, but the pacing is ... slack to say the least. Shame cubed. Harumph.